RE: [hpoj-devel] ptal-mlcd, ptal-printd errors and thanks.

[PASCHAL,DAVID (HP-Roseville,ex1) <dav...@hp...>]

Derek Robert Price wrote:
> I just recently set up my OJ K60 printer with the CVS version of the
> hpoj drivers over USB.  Using RedHat printtool I set lpd up to use the
> ghostscript cdj550 driver.  I finally managed to get some 
> color pages to
> print, but with the following errors from ptal-mlcd and ptal-printd:
> 
> ptal-mlcd: ERROR at ExMgr.cpp:2056, dev=<usb:hpoj>, pid=2201, errno=5
> llioService: llioRead returns -1, expected=6!
Hi, Derek.  I haven't seen this particular failure before (errno 5 means I/O
error), but it may be related to other problems I've seen.  These problems
apparently were due to a faulty USB chipset on the motherboard, as evidenced
by a large number of errors reported by a USB protocol analyzer (CATC USB
Chief).  The problems went away when I installed a PCI USB add-in card (in
my case, an OCHI card with an OPTi chipset).  

What kind of PC and USB hardware are you using?  Also, if you happen to have
an available bidirectional or ECP parallel port, you could try that instead.

> The first few times I attempted this I never got more that half a page
> before it seemed that ptal-mlcd crashed, but I can't seem to reproduce
> this.  The errors were very like the ones above after crashes, except
> I didn't see the printd error.
So in other words, are you saying you had more difficulties originally and
eventually it worked?

> Thanks for the good work!  This is my first color printer and it works
> from my Linux box!!!  :)
From your error report it sounds like it doesn't quite work.  :-)  Any luck
scanning with SANE?

David